How popular is Bernadetta?

Bernadetta is an unusual first name for women. Bernadetta is also an unusual surname for all people. (2000 U.S. DEMOGRAPHICS)

Which version is better?

Prominent alternative forms of Bernadetta (NOT IN TOP 2000) listed in the Top 2000 are Bernadette(#1536 VIA LATEST LIST) and Bernetta. These relations of Bernadetta were at the top of their popularity 76 years ago (AVERAGE #878) and have become much less common since, with the version Bernadette becoming less in vogue. (2016 BIRTH STATISTICS)